Mathematics
posted by INDIANA to Reiny on .
an aircraft's reading shows
time 8:55 at distance travelled 957km
time 9:07 at distance travelled 1083
calculate distance travelled in km
calculate the average speed of aircraft in km/h
(that is what was asked it never said total distance it said calculate distance traveled in km)

1 h = 60 min
9 h 07 mim = 8 h + 1 h + 7 min = 8 h + 60 min + 7 min = 8 h 67 min
9 h 7 min  8 h 55 min = 8 h 67 min  8 h 55 min = 12 min
Distance :
1083 km  957 km = 126 km
The average speed :
1 h = 60 min
12 min = 1 / 5 h
126 / ( 1 / 5 ) = 5 * 126 = 630 km / h